NOT KNOWN FACTS ABOUT KM04416

Pursuing oral administration of radiolabeled zafirlukast to volunteers, urinary excretion accounts for approximately ten% on the dose and the remainder is excreted in feces. Zafirlukast is just not detected in urine.In vitro studies demonstrated that zafirlukast antagonized the contractile action of a few leukotrienes (LTC 4, LTD four and LTE four)